3928828949 has 8 divisors (see below), whose sum is σ = 4193858880. Its totient is φ = 3669624000.

The previous prime is 3928828921. The next prime is 3928828951. The reversal of 3928828949 is 9498288293.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3928828949 - 2²⁴ = 3912051733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3928828891 and 3928828900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3928828909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1454852 + ... + 1457549.

It is an arithmetic number, because the mean of its divisors is an integer number (524232360).

Almost surely, 2^3928828949 is an apocalyptic number.

It is an amenable number.

3928828949 is a deficient number, since it is larger than the sum of its proper divisors (265029931).

3928828949 is a wasteful number, since it uses less digits than its factorization.

3928828949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912491.

The product of its digits is 17915904, while the sum is 62.

The square root of 3928828949 is about 62680.3713214911. The cubic root of 3928828949 is about 1577.9299051412.

The spelling of 3928828949 in words is "three billion, nine hundred twenty-eight million, eight hundred twenty-eight thousand, nine hundred forty-nine".